Reborn as the Jilted Fiancée: Why Are They All So Black-and-White?

How did I end up in the engagement-breaking plot where I offend the protagonist from the start? I don't want to become some face-slapping girl!

I tried to change my ending, but the lunatic by my side went and killed the protagonist.

What do you mean you did it for me? Help! If you want to get killed, stay away from me!! Don't get blood all over me!

And why are all the people I meet lunatics? I'm not some aloof, ethereal fairy like you all think! In fact, I'm just secretly passionate!

[Definitely yuri in the future, and the protagonist is definitely a virgin]